3 top tools for testing web performance

2016 was the year of performance – here's how you can make your sites faster and leaner.

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This year, as an industry we took big steps in dialing up the conversations about web page performance. A few focused changes can completely alter a site's performance, and every little bit – or rather, byte – is worth it. Performance matters because we're designing and developing for the user; so if it doesn't work for them, it doesn't work at all.

Site performance can be affected by a variety of elements, including network speeds, image sizes, non-minified resources, font file size, and the number of requests. Paravel developer Dave Rupert wrote not one, but two blog posts about how he tackled a lot of these issues on his own responsive site.

When it comes to JavaScript and CSS, including workflows with minifying and preprocessor options is a huge help. Even though line breaks and white spaces (tabs) aren't key culprits, if the project is large enough, they can be. If you're using external JavaScript libraries, opt for customised versions rather than a whole library for two functions.

Font hosting can also cause page bloat. One way to reduce this is by only including the type weights that have been used in your project. Keep to a few weights and consider other ways to push contrast and hierarchy.

Below, check out three tools that help you dissect your site and learn more about how long it takes to load.